Manage policy configuration file

This change includes the aodh_config configuration of the policy file in
the aodh::policy class.

Change-Id: I1f13db69165dce3d8774ca14b43e2fa095ee881f
Depends-On: I4e24d49ed7e84a3b5cb991e912ed320c393569e4

manifests/policy.pp

@@ -35,4 +35,5 @@ class aodh::policy (
   }
 
   create_resources('openstacklib::policy::base', $policies)
+  oslo::policy { 'aodh_config': policy_file => $policy_path }
 }

spec/classes/aodh_policy_spec.rb

@@ -20,6 +20,7 @@ describe 'aodh::policy' do
         :key   => 'context_is_admin',
         :value => 'foo:bar'
       })
+      is_expected.to contain_aodh_config('oslo_policy/policy_file').with_value('/etc/aodh/policy.json')
     end
   end